期刊
NANOMATERIALS
卷 10, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/nano10091648
关键词
graphene; laser fragmentation; laser processing; nanoparticles; ultraviolet photodetection; zinc oxide
类别
资金
- Office of Naval Research (ONR) through the Naval Research Laboratory Basic Research Program
By combining the enhanced photosensitive properties of zinc oxide nanoparticles and the excellent transport characteristics of graphene, UV-sensitive, solar-blind hybrid optoelectronic devices have been demonstrated. These hybrid devices offer high responsivity and gain, making them well suited for photodetector applications. Here, we report a hybrid ZnO nanoparticle/graphene phototransistor that exhibits a responsivity up to 4 x 10(4)AW(-1)and gain of up to 1.3 x 10(5)with high UV wavelength selectivity. ZnO nanoparticles were synthesized by pulsed laser fragmentation in liquid to attain a simple, efficient, ligand-free method for nanoparticle fabrication. By combining simple fabrication processes with a promising device architecture, highly sensitive ZnO nanoparticle/graphene UV photodetectors were successfully demonstrated.
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